It is concluded that in elderly patients VVIR pacing can improve symptoms, quality of life when compared with VVI.
结果提示：VVIR起搏较V VI起搏更能改善老年患者的自觉症状、提高其生活质量。
Compared to DDD mode, adopting DDDR and VVIR pacing modes, cardiovascular symptoms and quality of life of 51 SSS patients were significantly improved.
病窦综合征病人，与DDD模式相比，DDDR、VVIR起搏模式时，心血管症状和生活质量显著改善；
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